气候变化领域集成服务门户(CCPortal): InitMIP-Antarctica: An ice sheet model initialization experiment of ISMIP6

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DOI	10.5194/tc-13-1441-2019
	InitMIP-Antarctica: An ice sheet model initialization experiment of ISMIP6
	Seroussi H.; Nowicki S.; Simon E.; Abe-Ouchi A.; Albrecht T.; Brondex J.; Cornford S.; Dumas C.; Gillet-Chaulet F.; Goelzer H.; Golledge N.R.; Gregory J.M.; Greve R.; Hoffman M.J.; Humbert A.; Huybrechts P.; Kleiner T.; Larour E.; Leguy G.; Lipscomb W.H.; Lowry D.; Mengel M.; Morlighem M.; Pattyn F.; Payne A.J.; Pollard D.; Price S.F.; Quiquet A.; Reerink T.J.; Reese R.; Rodehacke C.B.; Schlegel N.-J.; Shepherd A.; Sun S.; Sutter J.; Van Breedam J.; Van De Wal R.S.W.; Winkelmann R.; Zhang T.
发表日期	2019
ISSN	19940416
EISSN	13
起始页码	1441
结束页码	1471
卷号	13 期号:5
英文摘要	Ice sheet numerical modeling is an important tool to estimate the dynamic contribution of the Antarctic ice sheet to sea level rise over the coming centuries. The influence of initial conditions on ice sheet model simulations, however, is still unclear. To better understand this influence, an initial state intercomparison exercise (initMIP) has been developed to compare, evaluate, and improve initialization procedures and estimate their impact on century-scale simulations. initMIP is the first set of experiments of the Ice Sheet Model Intercomparison Project for CMIP6 (ISMIP6), which is the primary Coupled Model Intercomparison Project Phase 6 (CMIP6) activity focusing on the Greenland and Antarctic ice sheets. Following initMIP-Greenland, initMIP-Antarctica has been designed to explore uncertainties associated with model initialization and spin-up and to evaluate the impact of changes in external forcings. Starting from the state of the Antarctic ice sheet at the end of the initialization procedure, three forward experiments are each run for 100 years: a control run, a run with a surface mass balance anomaly, and a run with a basal melting anomaly beneath floating ice. This study presents the results of initMIP-Antarctica from 25 simulations performed by 16 international modeling groups. The submitted results use different initial conditions and initialization methods, as well as ice flow model parameters and reference external forcings. We find a good agreement among model responses to the surface mass balance anomaly but large variations in responses to the basal melting anomaly. These variations can be attributed to differences in the extent of ice shelves and their upstream tributaries, the numerical treatment of grounding line, and the initial ocean conditions applied, suggesting that ongoing efforts to better represent ice shelves in continental-scale models should continue. © Author(s) 2019. This work is distributed under the Creative Commons Attribution 4.0 License.
语种	英语
来源期刊	The Cryosphere
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/118884
作者单位	Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States; NASA Goddard Space Flight Center, Greenbelt, MD, United States; University of Tokyo, Tokyo, Japan; Potsdam Institute for Climate Impact Research (PIK), Member of the Leibniz Association, Potsdam, Germany; Univ. Grenoble Alpes, CNRS, IRD, Grenoble INP, IGE, Grenoble, 38000, France; Swansea University, Swansea, United Kingdom; Laboratoire des Sciences du Climat et de l'Environnement, LSCE/IPSL, CEA-CNRS-UVSQ, Universite Paris-Saclay, Gif-sur-Yvette, 91191, France; Institute for Marine and Atmospheric Research Utrecht, Utrecht University, Utrecht, Netherlands; Laboratoire de Glaciologie, Université Libre de Bruxelles, Brussels, Belgium; Antarctic Research Centre, Victoria University of Wellington, Wellington, New Zealand, New Zealand; National Center for Atmospheric Science, University of Reading, Reading, United Kingdom; Institute of Low Temperature Science, Hokkaido University, Sapporo, Japan; Fluid Dynamics and Sol...
推荐引用方式 GB/T 7714	Seroussi H.,Nowicki S.,Simon E.,et al. InitMIP-Antarctica: An ice sheet model initialization experiment of ISMIP6[J],2019,13(5).
APA	Seroussi H..,Nowicki S..,Simon E..,Abe-Ouchi A..,Albrecht T..,...&Zhang T..(2019).InitMIP-Antarctica: An ice sheet model initialization experiment of ISMIP6.The Cryosphere,13(5).
MLA	Seroussi H.,et al."InitMIP-Antarctica: An ice sheet model initialization experiment of ISMIP6".The Cryosphere 13.5(2019).